381225212 has 6 divisors (see below), whose sum is σ = 667144128. Its totient is φ = 190612604.

The previous prime is 381225203. The next prime is 381225217. The reversal of 381225212 is 212522183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381225217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47653148 + ... + 47653155.

It is an arithmetic number, because the mean of its divisors is an integer number (111190688).

Almost surely, 2^381225212 is an apocalyptic number.

It is an amenable number.

381225212 is a deficient number, since it is larger than the sum of its proper divisors (285918916).

381225212 is a wasteful number, since it uses less digits than its factorization.

381225212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95306307 (or 95306305 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 381225212 is about 19524.9894238128. The cubic root of 381225212 is about 725.0932655284.

Adding to 381225212 its reverse (212522183), we get a palindrome (593747395).

It can be divided in two parts, 38122 and 5212, that added together give a palindrome (43334).

The spelling of 381225212 in words is "three hundred eighty-one million, two hundred twenty-five thousand, two hundred twelve".